Title (en)

CONTROLLING A WIND TURBINE WITH AN UPDATED POWER COEFFICIENT ADJUSTED BY A DEGRADATION FUNCTION

Title (de)

STEUERUNG EINER WINDTURBINE MIT ANHAND EINER DEGRADATIONSFUNKTION EINGESTELLTEM AKTUALISIERTEN LEISTUNGSKOEFFIZIENTEN

Title (fr)

COMMANDE D'UNE ÉOLIENNE AVEC UN COEFFICIENT DE PUISSANCE MIS À JOUR ET AJUSTÉ PAR UNE FONCTION DE DÉGRADATION

Publication

EP 4386201 A1 20240619 (EN)

Application

EP 22212800 A 20221212

Priority

EP 22212800 A 20221212

Abstract (en)

The present invention relates to controlling a wind turbine with an updated power coefficient. The updated power coefficient being adjusted by a degradation function which is determined in an iterative adjustment process. The wind turbine is controlled in partial load operation mode based on a tip-speed ratio (TSR) tracking scheme based on an estimated wind speed. The iterative adjustment process comprises operating the wind turbine to obtain a measurement set. The degradation function that represents the values of the measurement set is calculated and assigned to the mean operating TSR of the measurement set. The iterative process is continued until a difference between the selected TSR and the mean operating TSR is below a preset difference. A continuous degradation function for a range of the mean operating TSR value(s) is thereby obtained to determine an updated power coefficient to be used as the operating power coefficient.

IPC 8 full level

F03D 7/04 (2006.01); F03D 7/02 (2006.01)

CPC (source: EP US)

F03D 7/0276 (2013.01 - EP); F03D 7/028 (2013.01 - US); F03D 7/046 (2013.01 - EP); H02P 9/008 (2013.01 - US); F05B 2260/821 (2013.01 - EP); F05B 2270/1033 (2013.01 - US); F05B 2270/20 (2013.01 - EP); F05B 2270/32 (2013.01 - EP US); F05B 2270/327 (2013.01 - EP US); F05B 2270/335 (2013.01 - EP); F05B 2270/8042 (2013.01 - US); H02P 2101/15 (2015.01 - US); Y02E 10/72 (2013.01 - EP)

Citation (search report)

• [A] EP 3088733 A1 20161102 - ENVISION ENERGY JIANGSU CO LTD [CN]
• [A] EP 2719895 A1 20140416 - ALSTOM WIND SLU [ES]
• [A] MOHSEN NOURBAKHSH SOLTANI ET AL: "Estimation of Rotor Effective Wind Speed: A Comparison", IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 21, no. 4, 1 July 2013 (2013-07-01), pages 1155 - 1167, XP011515143, ISSN: 1063-6536, DOI: 10.1109/TCST.2013.2260751

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4386201 A1 20240619; US 12044212 B2 20240723; US 2024209834 A1 20240627

DOCDB simple family (application)

EP 22212800 A 20221212; US 202318537370 A 20231212